Checkbox Rails 4个嵌套属性，带有字段“u”表示Don&“x27”；无法保存到数据库

我想通过一个表单使用accepts\u nested\u attributes\u for在两个不同的表（场馆和停车场）上创建记录。我希望用户能够创建一个新的场馆，并通过复选框指定该场馆可用的停车选项。提交表单时，会创建包含模型（场地）的记录，但嵌套模型（停车场）不会发生任何变化。当我检查来自服务器的响应时，我看到我遇到了“unpermittedparameters:parking_attributes”，尽管我不知道为什么

我已经看过，并尝试了来自多个stackoverflow帖子的建议（，和）。如果有人能帮我，我将不胜感激

我已经包括了两个模型：场馆控制器、场馆/新视图和服务器的响应

地点.rb

class Venue < ActiveRecord::Base
  has_many :parkings
  accepts_nested_attributes_for :parkings
end

服务器响应

Started POST "/venues" for 127.0.0.1 at 2014-04-29 14:02:54 -0500
Processing by VenuesController#create as HTML
  Parameters: {"utf8"=>"✓",
    "authenticity_token"=>"kMcVVwXq7f22rIGm1rQ6+QzC80ScmXrVA2IE8TGbN7w=", 
    "venue"=>{"name"=>"The Five O'Clock Lounge", 
    "address"=>"11904 Detroit Ave", 
    "city"=>"Lakewood", 
    "state"=>"OH", 
    "zip"=>"44107", 
    "parkings_attributes"=>
      {"0"=>
        {"none"=>"1",
          "street_free"=>"0"
        }
      }
    }, 
    "commit"=>"Create Venue"}
Unpermitted parameters: parkings_attributes
  (0.2ms)  BEGIN
SQL (107.0ms)  INSERT INTO "venues" (
  "address", 
  "city", 
  "created_at", 
  "name", "state", 
  "updated_at", "zip"
) VALUES ($1, $2, $3, $4, $5, $6, $7) RETURNING "id"  
  [
    ["address", "11904 Detroit Ave"], 
    ["city", "Lakewood"], 
    ["created_at", Tue, 29 Apr 2014 19:02:54 UTC +00:00], 
    ["name", "The Five O'Clock Lounge"], 
    ["state", "OH"], 
    ["updated_at", Tue, 29 Apr 2014 19:02:54 UTC +00:00], 
    ["zip", 44107]
  ]
SQL (47.5ms)  INSERT INTO "parkings" (
  "created_at", 
  "updated_at", 
  "venue_id") VALUES ($1, $2, $3) RETURNING "id"  
    [
      ["created_at", Tue, 29 Apr 2014 19:02:54 UTC +00:00], 
      ["updated_at", Tue, 29 Apr 2014 19:02:54 UTC +00:00], 
      ["venue_id", 10]
    ]
  (0.6ms)  COMMIT
Redirected to http://localhost:3000/venues/10
Completed 302 Found in 165ms (ActiveRecord: 155.2ms)

更新：已解决

---

按照的建议，我能够通过未经许可的参数错误。

更新

场馆参数

方法如下：

 def venue_params
   params.require(:venue).permit(
      :name,:address,:city,:state,:zip,
      parkings_attributes: [:id, :venue_id, :none, :street_free])
 end

注意

parkings\u属性

（复数停车）而不是

停车属性

（单数停车）

---

由于您在

场馆

和

停车

模型之间有1-M关系，您将在

参数

散列中收到

停车属性

（复数停车），但在

场馆参数

的当前代码中，您将

停车属性

（单数停车）。这导致警告

未被允许的参数：停车属性
谢谢你，科蒂，这也帮了我的忙！
%h1 Add a new venue
= form_for @venue do |f|
  = f.label :name
  = f.text_field :name
  = f.label :address
  = f.text_field :address
  = f.label :city
  = f.text_field :city
  = f.label :state
  = f.text_field :state
  = f.label :zip
  = f.text_field :zip

  = f.fields_for :parkings do |p|
    = p.label :none
    = p.check_box :none
    = p.label :street_free
    = p.check_box :street_free
  = f.submit

Started POST "/venues" for 127.0.0.1 at 2014-04-29 14:02:54 -0500
Processing by VenuesController#create as HTML
  Parameters: {"utf8"=>"✓",
    "authenticity_token"=>"kMcVVwXq7f22rIGm1rQ6+QzC80ScmXrVA2IE8TGbN7w=", 
    "venue"=>{"name"=>"The Five O'Clock Lounge", 
    "address"=>"11904 Detroit Ave", 
    "city"=>"Lakewood", 
    "state"=>"OH", 
    "zip"=>"44107", 
    "parkings_attributes"=>
      {"0"=>
        {"none"=>"1",
          "street_free"=>"0"
        }
      }
    }, 
    "commit"=>"Create Venue"}
Unpermitted parameters: parkings_attributes
  (0.2ms)  BEGIN
SQL (107.0ms)  INSERT INTO "venues" (
  "address", 
  "city", 
  "created_at", 
  "name", "state", 
  "updated_at", "zip"
) VALUES ($1, $2, $3, $4, $5, $6, $7) RETURNING "id"  
  [
    ["address", "11904 Detroit Ave"], 
    ["city", "Lakewood"], 
    ["created_at", Tue, 29 Apr 2014 19:02:54 UTC +00:00], 
    ["name", "The Five O'Clock Lounge"], 
    ["state", "OH"], 
    ["updated_at", Tue, 29 Apr 2014 19:02:54 UTC +00:00], 
    ["zip", 44107]
  ]
SQL (47.5ms)  INSERT INTO "parkings" (
  "created_at", 
  "updated_at", 
  "venue_id") VALUES ($1, $2, $3) RETURNING "id"  
    [
      ["created_at", Tue, 29 Apr 2014 19:02:54 UTC +00:00], 
      ["updated_at", Tue, 29 Apr 2014 19:02:54 UTC +00:00], 
      ["venue_id", 10]
    ]
  (0.6ms)  COMMIT
Redirected to http://localhost:3000/venues/10
Completed 302 Found in 165ms (ActiveRecord: 155.2ms)

 def venue_params
   params.require(:venue).permit(
      :name,:address,:city,:state,:zip,
      parkings_attributes: [:id, :venue_id, :none, :street_free])
 end